package p1;

/**
 * @author krystal
 * @date 2022/11/9 15:14
 */
public class Demo11 {
    public static void main(String[] args) {
        int a = 10;
        long b = 20;
        long c = a + b;
        System.out.println(c);

        byte d = 10;
        byte e = 20;
        byte f = (byte)(d + e);
        System.out.println(f);
    }
}
